Furnace



FIG. 1 is a front perspective view of the cover panel;

FIG. 2 is a front elevational view of the cover panel;

FIG. 3 is rear elevational view of the cover panel;

FIG. 4 is a right side elevational view of the cover panel;

FIG. 5 is a left side elevational view of the cover panel;

FIG. 6 is top elevational view of the cover panel;

FIG. 7 is a bottom elevation view of the cover panel;

FIG. 8 is a front perspective view of the cover panel positioned on the heating furnace.

FIG. 9 is a front elevational view of the cover panel positioned on the heating furnace;

FIG. 10 is rear elevational view of the heating furnace;

FIG. 11 is a right side elevational view of the cover panel positioned on the heating furnace;

FIG. 12 is a left side elevational view of the cover panel positioned on the heating furnace;

FIG. 13 is top elevational view of the cover panel positioned on the heating furnace; and,

FIG. 14 is a bottom elevation view of the cover panel positioned on the heating furnace.

In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design. 

An ornamental design for a “furnace,” as shown and described. 